PayPal IPN 自定义表单数据
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【中文标题】PayPal IPN 自定义表单数据【英文标题】：PayPal IPN Custom Form data 【发布时间】：2013-10-27 21:51:13 【问题描述】：在验证 IPN 后，我正在尝试获取一些附加数据以插入到我的数据库中。我正确获得了 PayPal 定义的默认表单字段，但是如果我尝试发送自定义表单字段，它们将不会被接收。
这是我的 IPN 方法，在 $insertTransaction 之后，我用评论指出我想将几个自定义值添加到另一个表（订单），我从用户购买它们的同一表单中获得：
public function ipn()
// CONFIG: Enable debug mode. This means we'll log requests into 'ipn.log' in the same directory.
// Especially useful if you encounter network errors or other intermittent problems with IPN (validation).
// Set this to 0 once you go live or don't require logging.
define("DEBUG", 1);
// Set to 0 once you're ready to go live
define("USE_SANDBOX", 1);
define("LOG_FILE", "./ipn.log");
// Read POST data
// reading posted data directly from $_POST causes serialization
// issues with array data in POST. Reading raw POST data from input stream instead.
$raw_post_data = file_get_contents('php://input');
$raw_post_array = explode('&', $raw_post_data);
$myPost = array();
foreach ($raw_post_array as $keyval)
$keyval = explode('=', $keyval);
if (count($keyval) == 2)
$myPost[$keyval[0]] = urldecode($keyval[1]);
// read the post from PayPal system and add 'cmd'
$req = 'cmd=_notify-validate';
if(function_exists('get_magic_quotes_gpc'))
$get_magic_quotes_exists = true;
foreach ($myPost as $key => $value)
if($get_magic_quotes_exists == true && get_magic_quotes_gpc() == 1)
$value = urlencode(stripslashes($value));
else
$value = urlencode($value);
$req .= "&$key=$value";
// Post IPN data back to PayPal to validate the IPN data is genuine
// Without this step anyone can fake IPN data
if(USE_SANDBOX == true)
$paypal_url = "https://www.sandbox.paypal.com/cgi-bin/webscr";
else
$paypal_url = "https://www.paypal.com/cgi-bin/webscr";
$ch = curl_init($paypal_url);
if ($ch == FALSE)
return FALSE;
curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
if(DEBUG == true)
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLINFO_HEADER_OUT, 1);
// CONFIG: Optional proxy configuration
//curl_setopt($ch, CURLOPT_PROXY, $proxy);
//curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);
// Set TCP timeout to 30 seconds
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Connection: Close'));
// CONFIG: Please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path
// of the certificate as shown below. Ensure the file is readable by the webserver.
// This is mandatory for some environments.
//$cert = __DIR__ . "./cacert.pem";
//curl_setopt($ch, CURLOPT_CAINFO, $cert);
$res = curl_exec($ch);
if (curl_errno($ch) != 0) // cURL error
if(DEBUG == true)
error_log(date('[Y-m-d H:i e] '). "Can't connect to PayPal to validate IPN message: " . curl_error($ch) . PHP_EOL, 3, LOG_FILE);
curl_close($ch);
exit;
else
// Log the entire HTTP response if debug is switched on.
if(DEBUG == true)
error_log(date('[Y-m-d H:i e] '). "HTTP request of validation request:". curl_getinfo($ch, CURLINFO_HEADER_OUT) ." for IPN payload: $req" . PHP_EOL, 3, LOG_FILE);
error_log(date('[Y-m-d H:i e] '). "HTTP response of validation request: $res" . PHP_EOL, 3, LOG_FILE);
// Split response headers and payload
list($headers, $res) = explode("\r\n\r\n", $res, 2);
curl_close($ch);
// Inspect IPN validation result and act accordingly
if (strcmp ($res, "VERIFIED") == 0)
if($_POST['payment_status'] != "Completed")
exit;
/*if(urldecode($_POST['receiver_email']) == 'anooxy@gmail.com')
exit;
*/
$stmt = $this->db->prepare("SELECT * FROM transactions WHERE txn_id = :txn_id");
$stmt->bindValue(':txn_id', $_POST['txn_id']);
$stmt->execute();
$numRows = $stmt->rowCount();
if($numRows != 0)
exit;
$stmt->closeCursor();
$insertTransaction = $this->db->prepare('INSERT INTO transactions(txn_id, receiver, payer, item_name, payment_amount, payment_currency, payment_status, users_id)
VALUES(:txn_id, :receiver, :payer, :item_name, :payment_amount, :payment_currency, :payment_status, 6)');
$insertTransaction->execute(array(
':txn_id' => $_POST['txn_id'],
':receiver' => $_POST['receiver_email'],
':payer' => $_POST['payer_email'],
':item_name' => $_POST['item_name'],
':payment_amount' => $_POST['mc_gross'],
':payment_currency' => $_POST['mc_currency'],
':payment_status' => $_POST['payment_status']
));
// I WANT TO DO AN INSERTION OF SEVERAL CUSTOM VARIABLES TO ANOTHER TABLE (ORDERS)
// check whether the payment_status is Completed
// check that txn_id has not been previously processed
// check that receiver_email is your PayPal email
// check that payment_amount/payment_currency are correct
// process payment and mark item as paid.
// assign posted variables to local variables
//$item_name = $_POST['item_name'];
//$item_number = $_POST['item_number'];
//$payment_status = $_POST['payment_status'];
//$payment_amount = $_POST['mc_gross'];
//$payment_currency = $_POST['mc_currency'];
//$txn_id = $_POST['txn_id'];
//$receiver_email = $_POST['receiver_email'];
//$payer_email = $_POST['payer_email'];
if(DEBUG == true)
error_log(date('[Y-m-d H:i e] '). "Verified IPN: $req ". PHP_EOL, 3, LOG_FILE);
else if (strcmp ($res, "INVALID") == 0)
// log for manual investigation
// Add business logic here which deals with invalid IPN messages
if(DEBUG == true)
error_log(date('[Y-m-d H:i e] '). "Invalid IPN: $req" . PHP_EOL, 3, LOG_FILE);
我的表单 HTML 是：
<form method="post" action="https://www.sandbox.paypal.com/cgi-bin/webscr" class="paypal-button" target="_top">
<input type="hidden" name="button" value="buynow">
<input type="hidden" name="item_name" value="10 Appuntamenti">
<input type="hidden" name="amount" value="1.00">
<input type="hidden" name="currency_code" value="EUR">
<input type="hidden" name="quantity" value="10">
<input type="hidden" name="lc" value="IT">
<input type="hidden" name="env" value="www.sandbox">
<input type="hidden" name="return" value="http://spazio.glend.me/utente/compra">
<input type="hidden" name="notify_url" value="http://spazio.glend.me/utente/ipn">
<input type="hidden" name="custom" value="">
<input type="hidden" name="rm" value="2"><input type="hidden" name="cmd" value="_xclick">
<input type="hidden" name="business" value="Y8WPHSYX7692E">
<input type="hidden" name="bn" value="javascriptButton_buynow">
<button type="submit" class="paypal-button large">Buy Now</button>
</form>
我尝试添加自定义输入字段无济于事。我该如何解决这个问题？
【问题讨论】：
【参考方案1】：在您的 ipn 函数中，我没有看到您尝试访问 $_POST 变量 custom？
另外，在您的表单中，custom 字段为空：
<input type="hidden" name="custom" value="">
仔细检查 the manual 并确保您正确使用了自定义字段。如果您有多个值，请使用分隔符，例如“-”。
【讨论】：
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